SSL21101T Description
The SSL21101T is a Switch Mode Power Supply (SMPS) driver IC. It is designed to drive LED devices typically in flyback configurations. The device includes a high-voltage power switch and a circuit enabling start-up directly from the rectified mains voltage.
SSL21101T Key Features
- Small Printed-Circuit Board (PCB) footprint and pact solution with a small form factor
- Ease of integration
- Low ponent count (plete application with about 25 ponents)
- AC/DC offline non-dimmable LED driver from 100 V (AC) to 230 V (AC)
- Primary side sensing (no optocoupler required)
- True current source behavior
- LED current independent of mains voltage, LED voltage, temperature and coil variation
- High LED current accuracy (3 %)
- Efficiency up to 90 % depending on the application
SSL21101T Applications
- Internal protections: Short-winding protection Internal OverTemperature Protection (OTP) LED short protection LED open protection UnderVoltage LockOut
- External temperature protection with built-in Negative Temperature Coefficient (NTC)
- Internal supply voltage generation enabling start-up from the rectified mains voltage
- patible with wall switches with built-in indication light during standby